/*
 * Copyright (C) 2008
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.googlecode.sca4idea.providers.impls;

import com.googlecode.sca4idea.providers.SCAComponentImplementation;
import com.intellij.psi.PsiReferenceProvider;
import com.intellij.psi.search.GlobalSearchScope;
import com.intellij.psi.xml.XmlAttributeValue;
import com.intellij.psi.impl.source.resolve.reference.impl.providers.JavaClassReferenceProvider;
import com.intellij.openapi.module.ModuleUtil;
import com.intellij.openapi.module.Module;

/**
 * SCA Component Implementation for components backed by Java classes.
 */
public class JavaComponentImplementation implements SCAComponentImplementation {
    private final String classAttrName;
    
    public JavaComponentImplementation() {
        classAttrName = "class";
    }

    public JavaComponentImplementation(String classAttrName) {
        this.classAttrName = classAttrName;
    }

    public PsiReferenceProvider getReferenceProvider(String attrName, XmlAttributeValue attrVal) {
        if (!attrName.equals(classAttrName)) {
            return null;
        }

        Module elementModule = ModuleUtil.findModuleForPsiElement(attrVal);
        if (elementModule == null) return null;
        
        GlobalSearchScope searchScope = elementModule.getModuleWithDependenciesAndLibrariesScope(true);
        return new JavaClassReferenceProvider(searchScope, attrVal.getProject());
    }
}
